Homer m



" (No Model.) I

H. M. CALDWELL.

RBVOLVING FIRE ARM.

No. 383,701. Patented May 29, 1888.

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UML@ 558525.

UNITED STATES PATENT OFFICE.

HOMER M. CALDVELL, OF 'WORCESTER MASSACHUSETTS, ASSIGNOR TO THE HARRINGTON & RICHARDSON ARMS COMPANY, OF SAME PLACE.

REVOLVING FIRE-ARM.

SPECIFICATION forming part of Letters Patent No. 383,701, dated May 29, 1888.

Application filed March 7, 1838. Serial No. 266,451. (No model.)

To aM whom it may concern:

Be it known that I, HOMER M. CALDWELL, a citizen of the United States, residing at Worcester, in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Fire-Arms, of

which the following, together with the accompanying drawings, is aspecification sufficiently full, clear, and exact to enable persons skilled lo in the art to which this invention appertains to make and use the same. 4

This invention relates to improvements in mechanism for operating shell-extractors in that class of fire-arms wherein the extractor i 5 is fitted in the rear end of the charge-cylinder and supported on the end of a center stem that is worked for ejecting the shells from the cylinder when tilting forward the barrel, by means of a finger-disk in connection with the zo hinging-joint, the object of my present invention being to provide an extractor-actuating mechanism that will operate with efficiency, and which can be manufactured with practical facility and economy; also, to afford means whereby the extractor can be released or thrown down from any position of its movement when desired. These objects I attain bythe mechanism shown and described, the particular subject-matter claimed being hereinafter definitely specified.

In the drawings, Figure lis a part side, part vertical, sectional View of a revolver, showing my improved extractor mechanism in normal position. Fig. 2 is a similar view showing the barrel tilted forward to a position immediately preceding that at which the finger-disk stop is released. Fig. 3 shows the arrangement of the stop-actuating pins in the side of the barrel-hinge; also the position of' the intercept- 4o ing stud and screw for confining it in the frame. Fig. 4 is a transverse sectional view showing the back of the hinge-joint and interceptingstud. Fig. bis a top View of the fore-end of the frame with the barrel-hinge removed. Fig.

6 shows the detail of the finger-disk. Fig. 7 shows the detail of the stop-bolt, and Fig. 8 shows the detail of the intercepting-stud.

In referring to parts, A denotes the frame; B, the barrel hinged to the fore end of said 5o frame to swing on the pivot a, and locked to the upper part of the frame by the latch b, when in normal position. C indicates the cylinder; D, the extractor-plate, having its stem D fitted within the cylinder-supporting quill E, and provided with a spring, d, all of which parts may be constructed and arranged in the usual well-known manner.

F indicates the extractor-operating gear or disk mounted between the two cars or sides 0f the barrel-hinge on the pivot a, and provided with the finger j", that engages the extractor-stem, in the manner illustrated, for raising the extractor in the usual manner.

I indicates a longitudinally-movable stopbolt fitted within a groove, i, formed in one side of the disk F and arranged so that its end can projectfrom the periphery of the disk or be retracted, so as to be flush with the periphery thereof. Said bolt is provided with aprojecting lug, n, at its inner end, while the disk is fitted with a recess, n', to receive said lug oz., thereby retaining the bolt within its groove and confining it to agiven limit of movement. A recess and shoulder, m, is formed on one side of the bolt, and its outer end is provided with a lateral bevel or incline, I', on its projecting portion, as shown in Fig. 7.

The barrel-hinge is provided in one side with counterbored openings j, in which are arranged short pins or studs J and K, (see Fig. 3,) the heads of which are conlined within the counterbore of the openings y', fiush with the cheek of the hinge, while the points of" said studs extend through the side and project into curved grooves or an annular recess, c, formed in the side of the disk F in positions to engage the stop-bolt I, the pin J working against the head of said bolt and the pin K working against the shoulder my, as hereinafter eX- plained.

The fore-end of the frame A is fitted with a recess, h, within which the projecting end of the stop-bolt I works, and transversely across said recess there is arranged adjacent to the periphery of the hinge and disk a stud, L, for intercepting the stop-bolt and thereby preventing backward movement of the fingerdisk as the barrel is tilted forward. Said stud is formed with a notch, Z, in its side, which notch l is of sudicient width to permit the pas- IOO sage of theend of the stop-bolt I when said notch is in line withthe recess h. The-normal position et' the stud L is, with its notch Z, disposed so as to be out of line, or nearly so, with the recess Zi, and a suitable spring, L', provided for forcing the stud outward, so that its body will interceptthe stop-bolt when normally disposed. Theintercepting-stud can be readily moved to bring the notch into line with the stop-bolt by pressure of Ythe thumb on its Y outer end sufiicient to overcome the pressure of the spring''L, and the retractor mechanism is thus released. Upon removing the thumb the stud will be again pressed outward by its spring L. The stud L is retained in the frame by means of a small screw, r, the head. of which engages a shoulder, s, formed on the side of the stud, as indicated. The interceptingi-stud L is located at a shortl distance back from the position which the eind of the stop-bolt occupies when tie barrel is in normal position, (see Fig. Lfthus altowing slight tilting movement before the stop-bolt is intercepted and affording an interval sufficient to'permit :of the cylinder and shells being raised from the recoilplate before the extractor action for ejecting the shells from the cylinder commences.

The operation offmy improved mechanism is as follows: ZhenV the barrel is in normal position, (see Fig. 1,)the pin J rests againstjthe head of the stop-bolt I and causes said bolt to protrude from the periphery of the diskV F. Vhen the barrel is unlatched and tilted forward, the nger-disk F, reason of theforce of the extractor-spring df'is caused to swing with the barrel-hinge until the projecting end of the stopsbolt I is intercepted by the stud L, and further rotative movement of the disk is for the time prevented thereby, while thefurther tilting of thebarrel causes the pin to move away from the head. of the stopbolt, while the finger-disk remains stationary with the frame, causing` the extractor` l) to be raised from the rear end ef the cylinder by the action ofthe finger f infthe usual manner. When the barrel has reached a position substantially as indicated in Fig. 2, the pin K is brought into contact withthe vshoulder m on theistop belt I, and said stop bolt is thereby drawn into the disk, thus releasing its outer end'from the interceptingstud L, and the disk being then free to rotate, the extractoris immediately thrown down bythe action of its spring cl, the disk swinging on'the pivot-pin a and carrying the. stop? bolt around with it until its head strikes against the pin J, which forces the bolt outward to its first position. When the barrel is swung back to normal position, the bev-v eled `end of the stop-bolt passesiinto the slot Z in the intercepting-stud, and, by reason of its beveled form, overcomes the pressure of the spring Ll and nioves said stud Vinward suffcient to allow the end of the stop-bolt to pass through said notch Z to its original forward position.

If itis desired to throw down the extractor at any intermediate position of the tilting ac tion, it can be done by pressing in the interceptingstud'L, so as to bring the notch Zin line with the groove 7L. This will release the stop bolt and allow it to pass through the notcb, and the extractor will drop the action of t-he extractorspringd. 'Ihcbarrel and cylinder can be tilted without operating the extractor by simpl ypressing in the stud L before tilting it. i

It will befrnoticed that the end of the stopboltI, working within lthe groove 7L, andthe intercepter stud L are inclosed within 'the frame, and are thus securely protected from any accidental derangement which might otherwisc occur by contact with any object were such parts outside :or exposed.

The head ofthe intercepting-stud L is herein shown,for elearness of illustratiom'as projecting slightly from the frame; but in practiceit may be desirable to make the head of said stud iiush with the side of the frame :and form a slight depression or recess in the frame about thestnd to'facilitate pressing the end thereof.

The mechanismY constr'-.jcted as herein described can be readily and economically mannfactured. Y The parts are simple, easily made, and are net liable to derangement when in use, thus prodcing anY improvement that isjvery desirable and convenient for operation.

I am aware that it is a customary practice to operate shell-extractors having acentral stem by means Vof a disk arranged in the hingingjoint and provided with finger that engages with the extractor-stem, and that various devices have been employed for locking and releasing sa'rid finger-disk at positions for effecting action ofthe extractor. It will therefere be upderstood that Ido nothereiu claim, breadly, an extractor operated by a ngei-disk located at the hinging-joint; but my invention refers to and comprises the mechanism of improved construction herein illustrated and described.

ICO

What I claimjas of my invention, and de- Y sire to secure byLetters Patent, is-h l. In an extractor mechanism for firearms, l

the combination, with the barrel-hinge ear, the finger-disk mounted to swing on the hingepivot between said ears, and the finger-disk stop-bolt supported in Y,said finger-disk to be retracted or projected beyond the periphery thereof, of two studs supported in the side of said barrelhinge ear with their ends extend- VYreo ing intothe recessed side of sai dYfnger-disk at f positions to respectively engage and operate said stop-bolt, one when the barrel is tilted forward andthe other when the barrel is'swung back to normal position, substantially as set forth. i

the finger-diskhaving the groove t', with a re cess,-n,in theside thereof, in combination with: the longitudinally-movable stop-bolt I, ttedgY Yto slide free within said finger-disk groove,

and having a lug, n, projecting from 2Lits side into said recess n', together with studs borne Vby the hinge-ear and entering the groove to operate said stop-bolt, substantially as and for the purpose set forth.

3. The combination,with the frame and bar rel-hinge,shellextractor7 and eXtraetor-sprin g, in a fire-arm, ofthe grooved linger-disk, the stop-bolt having a notch or shoulder, m, fitted within said finger-disk with one of its ends projectable from the periphery thereof, two studs carried by the barrel-hinge, which engage and move said stopbolt, and an interceptingstud supported in the frame adjacent to the periphery of the disk,against which said stop-holt is arrested for effecting lifting action of the extractor, substantially as set forth.

4. The combination, substantially as described,\vith the frame and barrel-hinge, shelleXtractor stem, and extraetorspring, in a firearm, of the finger-disk F, the stop-bolt I, fitted in said finger-disk and having a shoulder, m, and laterally-beveled outer end, two studs, J and K, fixed in the barrel-hinge, and the spring actuated intercepting stud L, having the notch Z and supported in the frame A adjacent to the periphery of said finger-disk for engaging the end of the stop-bolt7 for the purposes set forth.

5. In a fire-arm of the class described, the fore end of the frame provided with the recess or groove 71, in combination with the barrelhinge, eXtractor-nger disk carrying a stopbolt the end of which works in said groove, and the laterally-movable spring-pressed in tercepting-stud arranged across said groove, substantially as set forth, whereby the stopbolt is protected by inclosure within the frame.

6. In an extractor-operating mechanism for fire-arms, the combination, with the ngerdisk F andstopbolt l, beveled on its outer end, of the spring pressed intere-epting stud L, supported in the frame for engaging said stopbolt, and having the notch l, the spring L at the end of said stud, and the stud-retaining screw r, for the purposes set forth.

fitness my hand this 2d day of March, A. D. 1888.

HOMER M. CALDWELL.

Witnesses:

CHAs. H. BURLEIGH, WM. A. RICHARDSON. 

